Home / 780,435.86-1,077,175.11-474,447.38

Finding the Fourth Proportional to 780,435.86, 1,077,175.11 and 474,447.38

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Solution

The fourth proportional to 780,435.86, 1,077,175.11 and 474,447.38 is: 654,842.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,435.86 : 1,077,175.11 = 474,447.38 : x
  2. Step 2: Convert to fraction form
    780,435.86/1,077,175.11 = 474,447.38/x
  3. Step 3: Cross multiply
    780,435.86x = 1,077,175.11 × 474,447.38
  4. Step 4: Simplify right side
    780,435.86x = 511,062,902,465.25
  5. Step 5: Solve for x
    x = 511,062,902,465.25/780,435.86
  6. Step 6: Final answer
    x = 654,842.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.